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当前位置: 首页 > 文章 > 冷涡背景下局地冰雹云图特征分析 山东农业大学学报(自然科学版) 2015,46 (3) 408-411
Position: Home > Articles > Analysis on Characteristics of the Hail in the Satellite Cloud Map under a Background of Cold Vortex Journal of Shandong Agricultural University(Natural Science Edition) 2015,46 (3) 408-411

冷涡背景下局地冰雹云图特征分析

作  者：
王兆华;邹大伟;王建波
单  位：
泰安市气象局;山东省气象局
关键词：
冰雹;卫星云图;冷涡
摘  要：
静止卫星是监测和研究冰雹天气最有效的工具之一,因此开展专门针对冰雹天气的静止卫星资料的研究十分必要。产生冰雹的强对流云团是在一定的大尺度背景天气系统内发生、发展和演变的,绝大多数冰雹的发生都与高空冷涡相伴。本文主要针对冷涡系统引起的冰雹天气,选取了近3年鲁中山区地区3次冰雹天气过程的资料进行对比分析,重点研究了冰雹云空间尺度、时间尺度、云顶、云体形状、温度梯度等的共同特征。初步统计结果表明:当东北冷涡持续维持,不断有冷空气侵入山东省时,配合地面的触发系统,容易诱发冰雹天气。冰雹多发生在冰雹云发展和成熟阶段,冰雹发生时,云体一般呈椭圆状,色调白亮,生命周期较短;另外,冰雹的发生区域一般不在TBB的中心区域而是冰雹云的上风一侧,TBB梯度区与冰雹的发生区域有较好的对应关系,在TBB中心温度小于-30℃的对流云中,TBB梯度大于10(℃/0.05°)的区域是冰雹易发区。
译  名：
Analysis on Characteristics of the Hail in the Satellite Cloud Map under a Background of Cold Vortex
作  者：
WANG Zhao-hua;ZOU Da-wei;WANG Jian-bo;Taian Meteorological Bureau;Shandong Meteorological Bureau;
关键词：
Hail;;Satellite CloudMap;;cold vortex
摘  要：
It is very necessary to carry out the research on satellite data during the hail weather as satellite is one of the most effective tools in monitoring and researching. The occurrence and development of a hail most happen in a large scale background weather system mostly along with the cold vortex. This paper aimed at the hail caused by cold vortex and selected three hail weather processes to produce in the mountainous area of Shandong in recent three years and put focus on the common features of spatial scale, time scale, cloud top, cloud shape, temperature gradient and so on during the hail. The preliminary statistical results showed when the cold vortex in northeast sustained and there was an effect of the constant strong cold air in Shandong, it was easy to induce hail weather in Shandong Province with the trigger system on the ground.Hail occurred during the development and mature of hail cloud and at this time the cloud generally showed the oval shape,white color, and short lifetime. In addition, the hail didn't occur in the center of the TBB but the center of gradient. There was a better corresponding relation between the TBB gradient and the hail occurrence. The hail easy occurrence area was in the central temperature of TBB less than-30 ℃ and its gradient greater than 10(℃/0.05°).

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